Adjustable lamp



FIG. 1 is a top, front, left side perspective view of an adjustable lamp showing my new design;

FIG. 2 is a right side elevational view thereof on an enlarged scale;

FIG. 3 is a bottom plan view thereof on an enlarged scale;

FIG. 4 is a rear elevational view thereof on an enlarged scale;

FIG. 5 is a front elevational view thereof on an enlarged scale;

FIG. 6 is a top, front, left side perspective view thereof in an alternate position;

FIG. 7 is a top, front, left side perspective view thereof in a second alternate position. 

The ornamental design for an adjustable lamp, as shown and described. 